The invisible resource : use and regulation of the radio spectrum - Levin, Harvey J. (Harvey Joshua), 1924- (Baltimore : Published for Resources for the Future by the Johns Hopkins Press, 1971)
Includes fold. sheet (col. illus.)'The electromagnetic spectrum' in pocket available at Cawangan Alat Pandang Dengar under the same call number.
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Keywords: Radio frequency allocation -- United States; Radio -- United States -- Laws and legislations